Full-Stack Developer (Web3/DeFi) to $4000

FillX is building the next-generation hybrid DEX combining CEX-speed trading with DEX-level security. Powered by Orderly Network, we create an all-in-one trading platform with AI-powered signals, social trading, and one-click execution.

We are looking for a Full-Stack Developer to build our trading platform, backend APIs, and blockchain integrations.

Responsibilities:

• Build and maintain trading platform frontend with React and Next.js
• Develop backend APIs for AI signal system, social features, and trading
• Integrate with Orderly Network SDK for on-chain trading
• Implement WebSocket connections for real-time market data
• Build user authentication, account management, and KYC flows
• Optimize performance for low-latency trading experience

Requirements:

• 3+ years of full-stack development experience
• Strong proficiency in React/Next.js + Node.js (or Python)
• Experience with WebSocket, real-time data, and REST APIs
• Database experience (PostgreSQL/MongoDB/Redis)
• Familiarity with blockchain/Web3 concepts
• Good English communication skills

Nice to Have: DeFi/DEX experience, TradingView integration, AI/ML APIs, TypeScript, Docker/Kubernetes

What We Offer:

• $2,500-$4,000/month
• 100% Remote - work from anywhere
• Flexible hours - async-first team
• Token allocation - early team equity
• Direct access to founders